SPARC T7 and S7 Memory SEEPROM data does not contain a valid Oracle Part Number

(Doc ID 2076678.1)

Last updated on NOVEMBER 15, 2017

Applies to:

SPARC T7-1 - Version All Versions and later
SPARC T7-2 - Version All Versions and later
SPARC S7-2 - Version All Versions and later
SPARC S7-2L - Version All Versions and later
Information in this document applies to any platform.

Symptoms

Memory module SEEPROM data is no longer populated with an Oracle Part Number, instead a generic string is written to the Serial Presence Detect (SPD) data on the DIMM which can be misinterpreted to be a FRU PN.

Example output for the supported 16GB Memory DIMMs

snapshot : snapshot/ilom/@usr@local@bin@collect_properties.out
ILOM CLI : show /SYS/MB/CM/CMP/BOB01/CH0/DIMM

/SYS/MB/CM/CMP/BOB01/CH0/DIMM
Properties:
type = DIMM
ipmi_name = P/B01/C0/D0
requested_config_state = Enabled
current_config_state = Enabled
disable_reason = None
fru_name = 16384MB DDR4 SDRAM DIMM
fru_manufacturer = Samsung
fru_part_number = 07075400,M393A2G40DB0-CPB
fru_rev_level = 01
fru_serial_number = 00CE01140401C34591
fault_state = OK
clear_fault_action = (none)

 

snapshot : snapshot/ipmi/@usr@local@bin@ipmiint_fru_print.out
ipmitool : ipmitool show fru

FRU Device Description : P/B01/C0/D0 (LUN 0, ID 24)
Product Manufacturer : Samsung
Product Name : 16384MB DDR4 SDRAM DIMM
Product Part Number : 07075400,M393A2G40DB0-CPB
Product Serial : 00CE01140401C34591
Product Extra : Rev 01

 

Example output for the supported 32GB Memory DIMMs

snapshot : snapshot/ilom/@usr@local@bin@collect_properties.out
ILOM CLI : show /SYS/MB/CM0/CMP/MR0/BOB0/CH0/DIMM

/SYS/MB/CM0/CMP/MR0/BOB0/CH0/DIMM
Properties:
type = DIMM
ipmi_name = P0/M0/B0/C0/D0
requested_config_state = Enabled
current_config_state = Enabled
disable_reason = None
fru_name = 32768MB DDR4 SDRAM DIMM
fru_manufacturer = Samsung
fru_part_number = 07075400,M386A4G40DM0-CPB
fru_rev_level = 01
fru_serial_number = 00CE021505713D335E
fault_state = OK
clear_fault_action = (none)

 

snapshot : snapshot/ipmi/@usr@local@bin@ipmiint_fru_print.out
ipmitool : ipmitool show fru

FRU Device Description : P0/M0/B0/C0/D0 (LUN 0, ID 24)
Product Manufacturer : Samsung
Product Name : 32768MB DDR4 SDRAM DIMM
Product Part Number : 07075400,M386A4G40DM0-CPB
Product Serial : 00CE021505713D335E
Product Extra : Rev 01

 

fru_part_number contains two fields - the first field (07075400 using the above example) has traditionally been used for the Oracle Part Number, however with DDR4 DIMMs this is no longer the case and 07075400 is NOT a valid Part Number and should not be used for determining the model of DIMM installed.

Cause

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